Finding the Fourth Proportional to 1,385.67, 1,912.32 and 796.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385.67 : 1,912.32 = 796.17 : x
2. Step 2: Convert to fraction form
   1,385.67/1,912.32 = 796.17/x
3. Step 3: Cross multiply
   1,385.67x = 1,912.32 × 796.17
4. Step 4: Simplify right side
   1,385.67x = 1,522,531.81
5. Step 5: Solve for x
   x = 1,522,531.81/1,385.67
6. Step 6: Final answer
   x = 1,098.77